Table P-X
External Similitude Centers.
Points available at the Kimberling's Encyclopedia ETC.
The ETC version: The 10000 points version of 2016.
The "Discoverer" database version: October 2013.
Last update: 2016-05-15

      Role     Kimberling Notation  
  1     External Center of Similitude of the Circumcircle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(36)   Inverse of the Incenter in the Circumcircle  
  2     External Center of Similitude of the Circumcircle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(3086)    
  3     External Center of Similitude of the Circumcircle of Triangle ABC and the Antimedial Circle of the Outer Yff Triangle     X(499)    
  4     External Center of Similitude of the Incircle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(3)   Circumcenter  
  5     External Center of Similitude of the Incircle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(11)   Feuerbach Point  
  6     External Center of Similitude of the Incircle of Triangle ABC and the Excentral Circle of the Outer Yff Triangle     X(5119)    
  7     External Center of Similitude of the Incircle of Triangle ABC and the Antimedial Circle of the Outer Yff Triangle     X(1478)   Center of the Inner Johnson-Yff Circle  
  8     External Center of Similitude of the Incircle of Triangle ABC and the Spieker Circle of the Outer Yff Triangle     X(3086)    
  9     External Center of Similitude of the Nine-Point Circle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(499)    
  10     External Center of Similitude of the Nine-Point Circle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(11)   Feuerbach Point  
  11     External Center of Similitude of the Extouch Circle of Triangle ABC and the Extouch Circle of the Outer Yff Triangle     X(1768)    
  12     External Center of Similitude of the Excentral Circle of Triangle ABC and the Excentral Circle of the Outer Yff Triangle     X(484)   Evans Perspector  
  13     External Center of Similitude of the Excentral Circle of Triangle ABC and the Antimedial Circle of the Outer Yff Triangle     X(1737)    
  14     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(3086)    
  15     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(5274)    
  16     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Excentral Circle of the Outer Yff Triangle     X(1737)    
  17     External Center of Similitude of the Antimedial Circle of Triangle ABC and the Antimedial Circle of the Outer Yff Triangle     X(3583)    
  18     External Center of Similitude of the Spieker Circle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(956)    
  19     External Center of Similitude of the Spieker Circle of Triangle ABC and the Incircle of the Outer Yff Triangle     X(499)    
  20     External Center of Similitude of the Spieker Circle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(3813)    
  21     External Center of Similitude of the Spieker Circle of Triangle ABC and the Spieker Circle of the Outer Yff Triangle     X(1737)    
  22     External Center of Similitude of the Brocard Circle of Triangle ABC and the Brocard Circle of the Outer Yff Triangle     X(1428)    
  23     External Center of Similitude of the Second Brocard Circle of Triangle ABC and the Second Brocard Circle of the Outer Yff Triangle     X(36)   Inverse of the Incenter in the Circumcircle  
  24     External Center of Similitude of the Moses Circle of Triangle ABC and the Antimedial Circle of the Outer Yff Triangle     X(9599)    
  25     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(5)   Nine-Point Center  
  26     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(5592)    
  27     External Center of Similitude of the Inner Johnson-Yff Circle of Triangle ABC and the Outer Johnson-Yff Circle of the Outer Yff Triangle     X(1)   Incenter  
  28     External Center of Similitude of the Outer Johnson-Yff Circle of Triangle ABC and the Nine-Point Circle of the Outer Yff Triangle     X(56)   External Center of Similitude of Circumcircle and Incircle  
  29     External Center of Similitude of the Outer Johnson-Yff Circle of Triangle ABC and the Tangential Circle of the Outer Yff Triangle     X(56)   External Center of Similitude of Circumcircle and Incircle  
  30     External Center of Similitude of the Outer Johnson-Yff Circle of Triangle ABC and the Inner Johnson-Yff Circle of the Outer Yff Triangle     X(1)   Incenter  
  31     External Center of Similitude of the Lemoine Circle of Triangle ABC and the Lemoine Circle of the Outer Yff Triangle     X(1428)    
  32     External Center of Similitude of the Cosine Circle of Triangle ABC and the Circumcircle of the Outer Yff Triangle     X(2067)